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Assume that an esterification reaction is done using 0.10 moles of a carboxylic acid and 1 moles of an alchohol. What is the theoretical yield (in moles) for the reaction? Explain.
When 35.0 g of an unknown nonelectrolyte is dissolved in 220.0 g of benzene, the solution boils at 83.2°C. Calculate the molecular weight of the unknown nonelectrolyte. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
a volume of 80.0 ml of h2o is initially at room temperature 22.0 c. a chilled steel rod at 2.00 c is placed in the
When combining atomic orbitals to form hybrid orbitals, how many hybrid orbitals are formed
A 95.0 gram piece of ice at 0.0 degrees celcius is added to a sample of water at 8.0 degrees celcius. All of the ice melts and the temperature of the water decreases to 0.0 degrees celcius. How many Kg of water were in the sample?
Three gases (8.00 of methane, CH4, 18.0 of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 degrees Celsius, the total pressure in the container is 3.50 atm. Calculate the partial pressure of e..
At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2, is 0.0690 g/L. What is the Ksp of this salt at this temperature
How does the strength of the attration between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
discribe the points of rutherford's model for the nuclear atom and how he tested this model. based on his expiriments, how did ruthford envision the structure of an atom?
Consider a solution that is 0.10 M in a weak triprotic acid that is represented by the general formula H3A with the following ionization constants. What is the concentration of HA2-? For H3A Ka1=1.0E-3 Ka2= 1.0E-8 Ka3= 1.0E-12
In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
An old tablet of vitamin C weighed 1.022 g. it was dissolved in 500 ml water and a 25 ml aliquot of this solution required 22.6 ml of 0.005 M I2 solution to oxidize it. calculate the mg vitamin C in the tablet
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.113 moles/liter in a sealed container and no product was present initially
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